Side to keep it clean. Once before to throw garbage in the classroom or along a road can be seen regularly. But after having to modify those garbage began to decrease. Everyone is leaving garbage and manipulation activities more.
The cleanliness When the litter in the classroom or on the streets is seen on a regular basis. But after the modified garbage, began to decline. Everyone learned to separate the garbage and left to be greater.
The cleaning service. Before dumping in the classroom or along the road are seen regularly. But after a modification those garbage began to decrease. Everyone to separate garbage and left to right.